Chapter 11 Inequalities

Chapter 11.1 Solving Simple Inequalities
1. Idea of inequality

• An inequality is a statement that indicates that one quantity is less than or greater than another. You can write inequalities using symbols such as ” <“, “> “, “<=”, or “>=”.
• 3x < 10
• x < 10/3 All values of x that satisfy the inequality above are called the solutions of the inequality.

2. Solving an inequality

• In class, explore the properties of simple inequalities.
• If a > b and k > 0, then ka > kb
• if a < b, and k > 0, then ka < kb
• Lot’s of examples and exencise in class.

3. HW:

• Handout: 2 pages
• Workbook: page 17, #1, #2, #3, #4; page 18, #5, #6

« Prev：Math 7B, Lesson 4, Spring 2022, 3/6/2022 Math 7B, Lesson 6, Spring 2022, 3/20/2022：Next »